Hi all
Just wanted to share my experiences of IOS with XCode 4.0, I guess some of this will be XCode 4.0 in General I rather foolishly upgraded my IPod to IOS 4.3, when I next tried to launch my app on it I was told XCode couldn't use the device anymore. After downloading the 4.3 GB XCode 4.0 with the new IOS SDK (What?), I installed, rebuilt OpenSceneGraph and my lib then tried to build and launch my app. Only to be presented with the following link error. ld: bad codegen, pointer diff in hogbox::Page::isSameKindAs(osg::Object const*) constto global weak symbol typeinfo for osg::Objectfor architecture armv7 collect2: ld returned 1 exit status Command /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/g++-4.2 failed with exit code 1 Strange one ay, hogbox::Page just inherits from osg::Object and was fine before. It turned out there is a new setting in the target Build settings called 'Symbols Hidden By Default', OSGs CMake system seems to set this to NO. When I opened my actual app project which was XCode 3 it set this setting to default YES. So then linking failed against OSG. Setting to NO as it is for OSG fixed the issue. I also had trouble locating my app bundle once built, check this out http://forums.macrumors.com/showthread.php?t=1124465 My advise overall is be prepared to be frustrated if you upgrade to XCode 4.0, as they have decided to pretty much change every single aspect of it. Took me 20 mins to even work out how to build in release :(. But on the plus side the CMake system stil works with it and OSG is now tested and working against IOS 4.3. Cheers Tom
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